Feeling low, need an uplift

I'm feeling extremely suicidal lately. Like it all just seems it would be better if I weren't around anymore. Where do I begin. So much has went on In my life. But right now what I feel the most down about is that I'm a single mum to two children, boy and a girl, boy is 5, girl is 3 months old. They both have different fathers. My sons dad, I was madly in love with, thought we where together forever, we planned our son, but he was abusive and that relationship ended after my son was born. My daughters dad, was my first ever fling, or should I say 'casual sex' as I hadn't done anything like that before. But I got caught pregnant. I run off and didn't even tell him for 35 weeks. When I did it took him some time to come around. But he did. And he was wonderful, we got on so well, he's so fucking gorgeous too. He wanted us to be together, then changed his mind that he didn't he wanted to remain single. He did want us to sleep together etc, but that wasn't enough for me. So I asked him to leave my life. He wAs reluctant to at first. Kept begging etc. but now he's literally gone. Not just on me, but his daughter too. Now I feel like I will be single forever. Who wants a women with two children already, and two different fathers. 😔😔😔😔😔😔😔 I'm only 25. And I feel my life is over. I miss him so much all I can think everyday is him with someone better, someone new, someone not me, someone with no kids he can have a life with. Although he already has 2 sons aswell. That he sees everyday and doesn't even see his wee daughter. 😔😔😔😔😔😔